How much HP does JB4 add b58?
JB4 Map Guide: JB4_B58 is CARB Approved Under Executive Order (EO) No. D-744-4 for all 2016-2018 BMW 230i, 330i, 430i, 530i, 340i, 440i, 740i, M240i, and X1 applications.
Which is better Racechip or JB4?
JB4 leaps miles ahead of Racechip when it comes to the performance increase of your car, coupled together with the fact that you can also run logging and than send the logs in to Terry and his crew to make sure everything is on the up and up with your car, this thing is perfect.
Is the B58 reliable?
Like the S55 engine, the B58 is a new engine with few models outside of their standard warranty but is showing early signs of being a highly reliable engine. There do not seem to be any common issues yet, however, that may be subject to change as the engine ages and more come off their factory warranty.
What is a JB4 tuning box?
What is a JB4? The JB4 is a plug and play tune available for turbocharged vehicles. In addition the JB4 system is not VIN locked to your vehicle and can quickly removed and swapped between cars or resold at a later time.
Can dealers see JB4?
As others said, JB4 map 0 is a pass through but if the dealer wants to start sniffing around they can physically look for unit and/or try to play with features most common with JB4. Most dealers know about these tunes by now, in fact my dealer used to encourage me to get a tune.
Can you trace a JB4?
The JB4 intercepts it at the sensors so the ECU thinks its running stock. It’s not reprogramming the computer. All boost levels etc are marked the same on the stock ECU. There is no way to trace it if its removed.
Is JB4 a good tune?
JB4 – The Pros The JB4 has pretty much full control of boost and fuel, and thanks to our advanced ECU’s, ignition advancement partially covered as well. Not only that, the JB4 is also acts as a high-speed data logging solution, and has a nice app so your phone can act as a real time display!
How much boost can a B58 handle?
On the stock ECU tune, the B58 will produce a maximum boost of approx. 8-11psi, which is slightly up from the 7-10psi found in the N54 and N55.